sol2/sol/stack_pop.hpp
ThePhD 9734577fdb stack implementation, plus reference semantics within lua for usertypes/data now.
I hate my life.
I hate the projects I'm working on.
Closes #53
Closes #56
Closes #52
2016-04-07 05:21:49 -04:00

67 lines
2.3 KiB
C++

// The MIT License (MIT)
// Copyright (c) 2013-2016 Rapptz, ThePhD and contributors
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SOL_STACK_POP_HPP
#define SOL_STACK_POP_HPP
#include "stack_core.hpp"
#include "stack_get.hpp"
#include <utility>
#include <tuple>
namespace sol {
namespace stack {
template <typename T, typename>
struct popper {
inline static decltype(auto) pop(lua_State* L) {
decltype(auto) r = get<T>(L);
lua_pop(L, 1);
return r;
}
};
template <typename... Args>
struct popper<std::tuple<Args...>> {
inline static decltype(auto) pop(lua_State* L) {
decltype(auto) r = get<std::tuple<Args...>>(L);
lua_pop(L, static_cast<int>(sizeof...(Args)));
return r;
}
};
template <typename A, typename B>
struct popper<std::pair<A, B>> {
inline static decltype(auto) pop(lua_State* L) {
decltype(auto) r = get<std::pair<A, B>>(L);
lua_pop(L, 2);
return r;
}
};
template <typename T>
struct popper<T, std::enable_if_t<std::is_base_of<stack_reference, meta::Unqualified<T>>::value>> {
static_assert(meta::Not<std::is_base_of<stack_reference, meta::Unqualified<T>>>::value, "You cannot pop something that derives from stack_reference: it will not remain on the stack and thusly will go out of scope!");
};
} // stack
} // sol
#endif // SOL_STACK_POP_HPP